1 উত্তর
সঠিক উত্তর হচ্ছে: Seven
ব্যাখ্যা:
We can observe on the paper that the sunlight is split into a spectrum of colours like a rainbow, every colour in VIBGYOR pattern i.e., violet, indigo, blue, green, yellow, orange and red can be seen. The conclusion drawn here is that sunlight is nothing but a mixture of seven colours.